Preheat oven to 350°.,Place the first 4 ingredients in a bowl and beat with mixer at medium speed until well blended (about 3 minutes).,______,Lightly spoon flour into dry measuring cups; level with a knife.,Combine flour and next 5 ingredients (flour through nutmeg), stirring with a whisk.,Add flour mixture and buttermilk alternately to sugar mixture; beat well after each addition.,Stir in apple and brandy, if desired.